{% if isFramework("vue") %}
```js
// a list of column definitions
this.columnDefs = [

    // no Header Comp specified, uses the Provided Header Comp
    {headerName: "Athlete", field: "athlete"},
    {headerName: "Sport", field: "sport"},

    // uses Custom Header Comp
    {headerName: "Age", field: "age", headerComponent: 'myHeaderComponent'}
]
```
{% /if %}
